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Sublime Security

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Stop advanced email attacks before they reach users with autonomous AI agents.

Free plan available Visit Website
Tracked since 2026
1 press mention

The Bottom Line

Price
Free plan available. Compare plans

Key facts

  • Uses autonomous AI agents (ADÉ & ASA) for proactive threat detection and automated email triage.
  • Provides full transparency and control over email security policies, reducing vendor dependency.
  • Significantly reduces false positives and automates remediation, freeing up security analysts.

Pros

  • Stops advanced, AI-powered email attacks with high efficacy.
  • Reduces false positives, saving analyst time and preventing business disruption.
  • Provides full transparency into detection decisions and customizable policies.
  • Automates the abuse mailbox, cutting Mean Time to Respond (MTTR) from hours to seconds.
  • Continuously adapts to new threats with AI-driven detection engineering.

Cons

  • Requires integration into existing email infrastructure.
  • Advanced features and full platform capabilities are likely restricted to enterprise plans.

What is Sublime Security?

Sublime Security offers a next-generation email security platform that leverages autonomous AI agents to detect, adapt to, and respond to advanced email threats. It aims to stop sophisticated attacks like Business Email Compromise (BEC), credential phishing, and malware before they impact users, providing security teams with full visibility and control. The platform is designed for security teams struggling with the limitations of legacy email security solutions, such as static detection, limited transparency, recurring false positives, and vendor bottlenecks. Sublime utilizes specialized AI agents like the Autonomous Detection Engineer (ADÉ) to proactively create and backtest new detections for emerging threats, and the Autonomous Security Analyst (ASA) to instantly triage user-reported emails, automate investigation, and remediation. This approach reduces manual effort, improves threat response times, and offers tailored detection policies. Sublime Security empowers organizations to gain full transparency into detection decisions, customize policies without vendor dependency, and evolve their defenses at the speed of adversaries. It helps security operations centers (SOCs) achieve higher catch rates with fewer false positives, automate abuse mailbox management, and conduct advanced threat hunting, ultimately enhancing their ability to prevent, detect, and respond to email-borne threats faster and with greater confidence.

Preview

Key Features

  • Autonomous Detection Engineer (ADÉ) for proactive threat detection rule generation
  • Autonomous Security Analyst (ASA) for automated email triage and response
  • Layered detection engine (ML, behavioral analysis, file/URL inspection, threat intelligence)
  • Vendor impersonation and compromise detection
  • Sender behavioral profiling to detect account compromise
  • Dynamic link analysis for real-time credential phishing and malicious redirect detection
  • Email bombing protection
  • Spam and graymail detection

Pricing Plans

Pricing checked Oct 1, 2026. Source: sublime.security/plans, read Oct 1, 2026

Sublime Security plans and prices, checked October 2026
Plan Price Details
Core

Free

  • Essential protection
  • First 100 mailboxes free
  • Standard actions (trash, move to spam/junk)
Enterprise

Contact sales

  • Autonomous protection & control
  • Full platform
  • Premium support
+16 more
  • Advanced controls
  • Advanced threat hunting
  • Backtesting
  • Standard actions (quarantine, quarantine-and-release, warning banners)
  • Malicious calendar event removal
  • REST API
  • Inline protection
  • SIEM and SOAR integrations
  • Deployment options (SaaS, single-tenant SaaS, self-managed in AWS/Azure, Docker)
  • Custom RBAC roles
  • SSO and MFA
  • SCIM user provisioning
  • Audit logging
  • Audit log export
  • S3 export
  • Multi-tenancy support

Included in all plans

  • Detection engine
  • Vendor impersonation and compromise detection
  • Sender behavioral profiles
  • Dynamic link analysis
  • Email bombing protection
  • Spam detection
  • Graymail detection
  • Allowlisting

Is Sublime Security worth the price?

Great value

The 'Core' tier is incredibly generous, offering essential protection for up to 100 mailboxes completely free, which is a significant value for small to medium businesses.

The 'Enterprise' tier, while contact sales, likely caters to larger organizations with its extensive feature set. This pricing model is best for businesses of all sizes looking for robust email security, with a strong entry point for smaller teams.

Full Sublime Security pricing: every plan, hidden costs and alternatives

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Sublime Security by the numbers

Sublime Security compared with 177 Email tools on Toolradar, as of Oct 2026
Metric Sublime Security Peer median Position (1 is best)
Free plan Yes 56% have one n/a
Listed as an alternative to 9 tools 2 #28 of 177 (joint)

Each position is counted among the tools that have data for that row, as noted under it. All Email data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “Sublime Security by the numbers”, Oct 2026.

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Sublime Security FAQ

How does Sublime Security address Business Email Compromise (BEC) attacks?

Sublime Security leverages autonomous AI agents to detect, adapt to, and respond to sophisticated email threats like Business Email Compromise (BEC) before they can impact users. Its platform is designed to stop these advanced attacks with high efficacy, providing security teams with full visibility and control.

Which teams benefit most from Sublime Security?

Sublime Security is designed for security teams and Security Operations Centers (SOCs) that are struggling with the limitations of legacy email security solutions. It helps these teams achieve higher catch rates with fewer false positives, automate abuse mailbox management, and conduct advanced threat hunting.

How does Sublime Security compare to ESET for email protection?

Sublime Security differentiates itself from solutions like ESET by using autonomous AI agents to proactively detect and adapt to advanced email threats, including AI-powered attacks. It focuses on providing full transparency into detection decisions and customizable policies, aiming to reduce false positives and automate threat response.

What kind of limitations should an organization consider when deploying Sublime Security?

Organizations should be aware that Sublime Security requires integration into their existing email infrastructure. Additionally, its advanced features and full platform capabilities are likely restricted to enterprise plans, meaning smaller organizations might not access the complete suite of tools.

Does Sublime Security include a free tier?

Yes, Sublime Security is available on a free tier. Paid plans are offered for users requiring more usage and additional features beyond what the free tier provides.

How does Sublime Security automate the handling of user-reported emails?

Sublime Security utilizes an Autonomous Security Analyst (ASA) agent to instantly triage user-reported emails. This agent automates the investigation and remediation process, significantly reducing manual effort and improving threat response times for security teams.

Can organizations customize their detection policies with Sublime Security?

Yes, Sublime Security provides full transparency into detection decisions and allows organizations to customize policies. This capability helps teams evolve their defenses without vendor dependency and tailor detection to their specific needs.

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